UTRAI Jstar X1 Portable Jump Starter, 12V Super Capacitor Jump Starter 500F Battery-Free Super Safe

Car Battery Booster (Up to 8.0L Gas, 7.5L Diesel Engine) with Large LCD Screen, 3 Mins Quick Charge

(10 customer reviews)

$139.98

FREE delivery Sunday, June 4 Or fastest delivery Wednesday, May 31. Order within 5 hrs 31 mins

Rating: 4.4 out of 5 stars
Opinions & Reviews: 576
Answered Questions: 17
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SKU: B0B8GCNJL5/com Category:

Product Features and Description

  • 【 Unique Super Capacitor Technology 】 Jstar X1 jump starter doesn’t use lithium battery but super capacitor, so it’s a super safe jump pack, no worries about heat and explosion. No need for regular charging when you use it, charge from your weak car battery, instantly start all the 12 volt vehicles like SUVs, RVs, pickups, motorcycles, snowmobiles, and even lawnmowers.
  • 【 Always Ready To Start 】 Jstar X1 portable car jumper starter doesn’t need to pre-charge for hours, 3 mins fast charging, plug and play, really saves your time. In addition, this car battery jump starter can be used more than 100,000 times. It’s more convenient and has a longer lifespan than other ordinary jump starters.
  • 【 Working In Freezing Winter 】 Jstar X1 jumper box for car battery can save you from stalling in freezing weather, even in -40℉. This battery jumper’s operation temp is -40℉-158℉, so whether it’s a snowstorm or a scorching summer day, you always easily start your dead car with this booster pack jump starter.
  • 【 Extremely Safe Car Starter 】 Jstar X1 jump box is a supercapacitor jump starter, not a built-in battery, and is physically activated to keep users away from the risk of sparks or explosions. What’s more, car jumper comes with the most advanced smart clamp with 8 kinds of multi-protection technologies, easy to use and absolutely safe.
  • 【 Lifetime Free After-sales Service 】 You can get not only a car battery charger jump starter, but also a lifetime professional 24-hour online after-sales team for any issues. UTRAI offers a free return/replacement policy to protect all customers rights. Please free to contact us if you have any questions.

What makes UTRAI unique? UTRAI is a self-owned brand born in 2014, who focuses on the auto parts industry for many years. We designed a lot of auto products and sell them on Amazon. We are committed to providing the best solutions for any auto problem on the road. Whether it’s outdoor travel or a roadside emergency, you can trust us and get all you need from UTRAI. Always Ready For Your Exploration!

  • Brand:‎UTRAI
  • Battery Cell Composition:‎Lithium
  • Voltage:‎12 Volts
  • Item Dimensions LxWxH:‎8.5 x 4.5 x 3 inches
  • Vehicle Service Type:‎Passenger Car, Motorcycle, Snowmobile
  • Battery Capacity:‎12 Volts
  • Amperage:‎500 Amps
  • Manufacturer:‎UTRAI
  • Model:‎Jstar X1
  • Item Weight:‎3.12 pounds
  • Product Dimensions:‎8.5 x 4.5 x 3 inches
  • Item model number:‎Jstar X1
  • Manufacturer Part Number:‎Jstar X1
  • ASIN:B0B8GCNJL5
  • Customer Reviews:4.5 out of 5 stars 567 ratings 4.5 out of 5 stars
  • Best Sellers Rank:#158,190 in Automotive (See Top 100 in Automotive) #363 in Jump Starters
  • Date First Available:August 3, 2022

Available Product Variations

Additional information

Brand

‎UTRAI

Battery Cell Composition

‎Lithium

Voltage

‎12 Volts

Item Dimensions LxWxH

‎8.5 x 4.5 x 3 inches

Vehicle Service Type

‎Passenger Car, Motorcycle, Snowmobile

Battery Capacity

‎12 Volts

Amperage

‎500 Amps

Manufacturer

‎UTRAI

Model

‎Jstar X1

Item Weight

‎3.12 pounds

Product Dimensions

‎8.5 x 4.5 x 3 inches

Item model number

‎Jstar X1

Manufacturer Part Number

‎Jstar X1

ASIN

B0B8GCNJL5

Customer Reviews

4.5 out of 5 stars 567 ratings 4.5 out of 5 stars

Best Sellers Rank

#158,190 in Automotive (See Top 100 in Automotive) #363 in Jump Starters

Date First Available

August 3, 2022

10 reviews for UTRAI Jstar X1 Portable Jump Starter, 12V Super Capacitor Jump Starter 500F Battery-Free Super Safe

  1. Satisfied

    Damaged Product

    Regrettably, when I attempted to use the jumper last week, it did not work. The ‘On/Off plastic switch snapped at first press and disappeared inside the equipment. Still stuck inside.what a disappointment!

    Variation: Color: Gray / Reviewed in the United States 🇺🇸 on May 16, 2023
  2. Frank Riedel

    absolute rubbish — charged in the morning, wanting to use afternoon — completely discharged

    based on “positive reviews” i bought the unit. unpacked, charged until full and wanted to use. from 100% fully charged went down to 31% when checking and 15min later was completely empty — brand new, untouched and never used!

    Variation: Color: Gray / Reviewed in the United States 🇺🇸 on May 14, 2023
  3. Kobus Malan

    Charge fast

    Takes 30 minutes to charge from empty

    Variation: Color: Gray / Reviewed in the United States 🇺🇸 on April 27, 2023
  4. John Duque

    The product doesn’t work

    The first time I tried to work with this product on my car’s battery and following all the product’s instructions and it doesn’t work as it should.

    Variation: Color: Gray / Reviewed in the United States on April 20, 2023
  5. Wendell j Richardson

    The service was very good. Thank you

    Emergency use for my transportation

    Variation: Color: Gray / Reviewed in the United States on March 24, 2023
  6. Alba G.

    Efectivo si funciona

    Cumple con el tiempo de carga … Arranca el vehículo con mucha facilidad. Satisfacción total

    Variation: Color: Gray / Reviewed in the United States on February 4, 2023
  7. Khoa

    Does not work!

    Expensive, looked nice, but it could not start my honda civic hybrid, which is only 1.3L gasoline engine. It could be QA/QC or a lemon, but I would never know. Returned. At least Amazon return was easy and helpful.

    Variation: Color: Gray / Reviewed in the United States on December 29, 2022
  8. Leo

    Easy to use

    The jumper starter is relatively light and compact. It has a very large LCD screen which is bright and easy to read. It charges fast, I connect it to my almost dead car battery and it takes less than 5 mins to be 100%. So simple to use. Problem solved. I would recommend it to my friends.

    Variation: Color: Gray / Reviewed in the United States on November 10, 2022
  9. Activebee

    Reliable and good idea.

    I was just testing of 5V input is good, you need this only if your battery is completely dead. Typically (99%) we will have discharged battery condition happens if we forgot turn off lights of car or missed to close the door/trunk properly… Or old battery that is not able to start the car. In these these jump start works like charm in that case. the good thing is this is supercapacitor design and battery-free solution. Just leave in our car like jump start cable and never worry about charging. If you run in to dead battery situation, you have the savior. I got one for my CRV.

    Variation: Color: Gray / Reviewed in the United States on November 1, 2022
  10. Yinka

    Works, but build could be better

    The device work fine however it is poorly built. On first use the power button fell inside the device on is there. The button felt very inferior. Equally the positive clamp fell apart. I was able to put it back together. A useful device but over priced for its quality.

    Variation: Color: Gray / Reviewed in the United States on October 30, 2022
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